Fig. 3From: Effects of cryopreservation and long-term culture on biological characteristics and proteomic profiles of human umbilical cord-derived mesenchymal stem cellsComparison of the cell viability (n = 3) (a), surface markers expression (n = 3) (b) and morphology (c) between non-cryopreserved (N) and cryopreserved (C) groups after being sub-cultured for 24 h or 48 h at P4 and P10, respectivelyBack to article page